Fastener



April 26, 1938. w, w s 2,115,353

FASTENER Filed March 5, 1937 Patented Apaze, 193s 2,115,353

' uurrsn STATES PATENT oFFicE William tax-inlay. Chicago, Ill-Application March 3, 193", Stllli N- 128,880 $0181 (01. ll-415.1)

My inventionrela .to cylindrical holders on In the present instance, thewrapper for the which a sheet is wrapped and adapted to be used cylinderis intended to be used for purposes of or read as the cylinder isturned, and more parreference, the view of any portion of the sheetticularly .to devices for fastening the-sheet to from the front beingmade possible by turning the cylinder, and my main object is to providea the cylinder the proper distance. 'It is under- 5 fastener of this.kind which is of extreme simstood that with no friction or strainreceived by plicity. the sheet it is not necessary to have a very strongA further object of the invention is to design fastening means, and onewill suffice which firmly the novel fastener in a single piece and forapholds the sheet to the cylinder in closely-wrapped 1o plicationwithout the need of screws, nails, or form.

other accessories. In accordance with the foregoing, specific ref- A-still further object of the invention is to erence to the drawingindicates a fragment of a provide a fastener which requires a minimumsuitable cabinet at It, in which the cylinder ii is amount of space foritself and leaves practically vertically mounted for rotation. Thus, thespin it the entire space around the cylinder for the sheet. dle Ha ofthe cylinder is receivable in an aper- An additional object of theinvention is to so ture in a cabinet shelf Ila, while at the bottomconstruct the novel fastener that it is placed unthe cylinder isperforated to receive the lugs I der tension when in use, holding theends of the of a bottom plate I! carried by a spindle it. The sheetfirmly to the cylinder. latter is co-axial with the spindle Ho. andpasses 90 An important object of the invention is to dethrough thebottom of the cabinet to receive a 20 sign the novel fastener for. easyapplication and knob I4. Between the plate I! and the cabinet removal,facilitating the mounting and removal bottom, the spindle l3 receives acompression of the sheet. spring l5. It will be seen that the cylindermay With the above oblects in view, and any others be rotated by turningthe knob I4; and it may be which may suggest themselves from thedescripg removed by pulling the knob down as indicated in 25 tion tofollow, a better understanding of the nov- Fig. 2 to release the spindleIla. from the shelf el fastener may be had by reference. to th aciila,enabling the cylinder to be lifted free of the companying drawing, inwhich lugs Ila and drawn out of the cabinet. This in- Flg. 1 'is anelevation, partly in section, of a stallationhas been shown merely forpurposes .of cylinder installation showing the novel fastener example,and as a simple means to provide both a 30 1 place; turning and removingcontrol for the cylinder,

Fig. 2 is a view similar to Fig. 1 showing the no novelty being claimedfor the same. cylinder in a position to be removed from the The Sheetwhich 15 adapted to be pp place in which it is installed; around thecylinder is indicated at it, and for Fig. 3 is a top plan view of thecylinder, on an the present purpose the ends I60. thereof are 35enlarged scale, showing the sheet fastened around b n in to app r as inFi 6 when the sheet is the same; ready to be mounted. In the form shownin Fig. Fig. 4 is a view similar to Fig. 3, showing 3, the periphery ofthecylinder is cut with a deep modification where the sheet is appliedin seclongitudinal slot Nb. and when the sheet has tiong; been mountedas in Fig. 3 the ends lia seat in 40 Fig. 5 is an edge view, on anenlarged scale, th sl t in closely spaced relation. of the novelfastener; and The novel fastener is in the form of a long Fig. 6 is aperspective view of the sheet in postrip ll of spring metal, the stripbeing formed sition for application to the cylinder. with a series ofshallow alternate bends I'Ia. One

Various means have been employed in the past end of the strip is madewith a short lateral bend to secure a sheet around a cylinder, such asin "D having a slight inclination and terminating the case of fir-sanding rollers, cylinders where with an outward curl llc. the sheetcontains reference data, etc., the purwhen the sheet has been mounted onthe cylpose being to both secure the sheet in closely inder as describedabove, the strip i1 is inserted wrappedform to the cylinder and renderthe fasbetween its terminal bends lia. by pressure tend- 50 tenerreleasable for the removal of the sheet ing to straighten the strip.This enables the in case it became worn or required replacement. latterto be fitted in the narrow space between However, the fastening meansreferred to have the sheet ends lia. However, the strip-isnow been moreor less complicated and therefore not under tension and exerts pressureagainst the suitable for my purpose. ends "a to keep them firmly againstthe sides of the cylinder a chart to suggest a vertical and lateraltabulation of formulas or other reference data carried by the sheet. Themodification of Fig. 4 shows that the cylindermay be grooved in threeplaces instead of one, where sheet sections are intended to extend onlypart-way around the cylinder. Thus, the illustration shows each sheetsection extending one-third-way around the cylinder. Obviously, fewer ormore sheets could be used by further, and similar modifications of thecylinder. With the novel fastener applied at each junction of sheetsections, all may be firmly secured yet ually removable if desired.

It will be evident from the above description that I have providedafastener for the purpose ifled which is of extreme simplicity. ofspring metal and placed under tension when applied, it will exert itshold on the sheet ends firmly and indefinitely without the use of anyother means, and stay in place at all times. Being a. thin strip, itoccupies but a slight amount individ- I 01 room, leaving almost theentire surface oi the cylinder to carry and display the wrapped sheet.The fastener therefore does not waste any sheet space and is highlyeflicient in this and the other respects noted. The fastener bends Ilabeing rounded make it easy to press the fastenei in place and preventthe sheet ends from. being cut or torn. Finally, it will be evident thata fastener of this kind may be produced at trifling cos I claim:-

WILLIAM WALMSLEY.

